|
RAND Corporation (United States)
12
|
Potsdam Institute for Climate Impact Research (Germany)
4
|
National Bureau of Economic Research (United States)
3
|
|
Center for Environmental Research (Germany)
2
|
Centre for European Policy Studies (Belgium)
2
|
International Institute for Applied Systems Analysis (Austria)
2
|
|
Urban Institute (United States)
1
|
